What Happens If We Forget to Unlock a Mutex?

Let’s dive into the consequences of failing to unlock a mutex.

Forgetting to unlock a sync.Mutex mutex

Forgetting to unlock a sync.Mutex mutex creates a panic situation even in the simplest kind of a program. The same applies to the sync.RWMutex mutex.

Coding example

Let’s now see a code example to understand this unpleasant situation a lot better—this is part of forgetMutex.go.

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